Air compressor



FIG. 1 is a perspective view of an air compressor showing my new design thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are included for the purpose of illustrating portions of the air compressor that form no part of the claimed design. 

CLAIM The ornamental design for an air compressor, as shown. 